Re: [PATCH v2 04/17] clk: mmp2: Add support for PLL clock sources

[Stephen Boyd]

Quoting Lubomir Rintel (2020-03-09 12:42:41)
> The clk-of-mmp2 driver pretends that the clock outputs from the PLLs are
> constant, but in fact they are configurable.
> 
> Add logic for obtaining the actual clock rates on MMP2 as well as MMP3.
> There is no documentation for either SoC, but the "systemsetting" drivers
> from Marvell GPL code dump provide some clue as far as MPMU registers on
> MMP2 [1] and MMP3 [2] go.
> 
> [1] https://git.kernel.org/pub/scm/linux/kernel/git/lkundrak/linux-mmp3-dell-ariel.git/tree/drivers/char/mmp2_systemsetting.c
> [2] https://git.kernel.org/pub/scm/linux/kernel/git/lkundrak/linux-mmp3-dell-ariel.git/tree/drivers/char/mmp3_systemsetting.c
> 
> A separate commit will adjust the clk-of-mmp2 driver.
> 
> Tested on a MMP3-based Dell Wyse 3020 as well as MMP2-based OLPC
> XO-1.75 laptop.
> 
> Signed-off-by: Lubomir Rintel <lkundrak@xxxxx>
> ---

Applied to clk-next